#ifndef _EXPR_OPS_H_
#define _EXPR_OPS_H_

#include <stdlib.h>
#include <stdint.h>

struct nlattr;
struct nlmsghdr;
struct nft_rule_expr;

struct expr_ops {
	char	*name;
	size_t	alloc_len;
	int	max_attr;
	int	(*set)(struct nft_rule_expr *e, uint16_t type, const void *data, size_t data_len);
	const void *(*get)(struct nft_rule_expr *e, uint16_t type, size_t *data_len);
	int 	(*parse)(struct nft_rule_expr *e, struct nlattr *attr);
	void	(*build)(struct nlmsghdr *nlh, struct nft_rule_expr *e);
	int	(*snprintf)(char *buf, size_t len, struct nft_rule_expr *e);
};

struct expr_ops *nft_expr_ops_lookup(const char *name);

#endif